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November 2017 in “Koubunshi rombunshuu/Kōbunshi ronbunshū” Hematin in shampoo helps repair and straighten damaged hair.
February 2022 in “Cosmetic Dermatology” Permanent hair waving uses chemicals to create long-lasting curls.
2 citations
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January 2015 in “Sen'i Gakkaishi” Washing permed hair after using thioglycolic acid helps reform strong bonds, making hair stronger.
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January 2003 in “Journal of cosmetic and laser therapy” The filterless flashlamp-based system effectively delays hair regrowth and improves skin condition.
February 1994 in “PubMed” Telogen effluvium is a type of temporary hair loss.
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August 2005 in “Microscopy and Microanalysis” Polymethylene wax in hair relaxers makes hair smooth and shiny with less damage.
62 citations
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February 2016 in “ACS Applied Materials & Interfaces” Technique creates 3D cell spheroids for hair-follicle regeneration.
June 2025 in “Journal of the Pakistan Medical Association” 2dDR may help regrow hair in male pattern baldness.
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January 2008 in “Sen'i Gakkaishi” Thioglycolic acid and L-cysteine change hair structure differently during perms, affecting hair strength and curling efficiency.
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July 1993 in “Journal of Investigative Dermatology” 9 citations
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January 2019 in “Dermatology Online Journal” Laser-assisted delivery of PRP, with or without bimatoprost and minoxidil, can effectively stimulate hair growth.
June 2023 in “Zenodo (CERN European Organization for Nuclear Research)” January 2008 in “Hair transplant forum international” 
2 citations
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January 2002 in “PubMed” The new test shows how hair treatments affect hair's bending stiffness by swinging a pendulum through hair fibers.
Miniflap hair restoration is a method to regrow hair.
May 2016 in “Hair transplant forum international” 3 citations
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June 2008 in “Springer eBooks” Hair care products clean, protect, style, color, and change hair structure.
January 2024 in “Updates in clinical dermatology” 14 citations
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September 1968 in “Archives of Dermatology” Using hot combs can cause permanent hair loss on the scalp's crown.
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June 2012 in “British Journal of Dermatology” Bleaching hair damages protein structure, especially keratin, leading to weakened hair.
January 2024 in “World Congress on Medical Physics and Biomedical Engineering, September 7 - 12, 2009, Munich, Germany” Polisorbate 20 is not suitable for curl creams due to instability.
October 2022 in “Hair Transplantation” Temporary scalp trichopigmentation creates a shaved hair look on the scalp using pigments that fade over time.
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March 2021 in “CRC Press eBooks” Shampoos clean and improve hair, boosting confidence and quality of life.
January 2020 in “Hair therapy & transplantation” PRP therapy can help stimulate natural hair growth and thicken hair.
May 2014 in “Dermatology Times” January 2026 in “Biomaterials” 11 citations
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January 2016 in “International Journal of Biological Macromolecules” Enzymatic phosphorylation of hair keratin improves the effectiveness of hair products with cationic ingredients.
2 citations
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October 2021 in “International journal of pharmaceutical chemistry and analysis” The dry herbal powder shampoo showed promise but needs more work to enhance quality and safety.